Critical evaluation of the Fe–Ni, Fe–Ti and Fe–Ni–Ti alloy systems

The Fe–Ni–Ti alloy system has been evaluated, together with Fe–Ni and Fe–Ti binary subsystems, to provide reliable information for applications and in view of a thermodynamic modelling of the system. Available literature has been critically evaluated, mainly considering phase constitution and phase equilibria, thermochemical and diffusion data, as well as ab initio atomistic calculations. A discussion of the presently available CALPHAD-type thermodynamic assessments is also presented. Finally, new experimental investigations needed to solve uncertain and contradictory data are suggested.